Science joins the force' scenes from the opening ceremony of the Metropolitan Police Laboratory, Hendon, 10th April 1935 - described as a new lab to catch old lags . Scenes of scientists at work (including Dr. James Davidson, first Director of the Laboratory) and of opening speech by Sir John Gilmour, then Home Secretary. The final frames afford a brief glimpse of Sir Henry Wellcome, a few months before his death, seated among the V.I.P. guests on the platform to the left of Sir John Gilmour. Of great interest to historians of forensic science and medicine. 1 segment.